Permanent binder



'Feb, 26, 1929.

R. F. POWER PERMANENT BINDER Filed June 20,- 1927 4 Sheets-Sheet 1 Feb. 26, 1929.. 1,703,245

. R. F. POWER PERMANENT BINDER Filed June 20, 1927 4 Sheets-Sheet 2 Feb. 26, 1929.

R. F. POWER PERMANENT BINDER 4 Sheets-Sheet Filed June 20, 1927 y Z M k 7 w k F Fig.13

Feb. 26, 1929.

R. F. POWER PERMANENT BINDER Filed June 20, 1927 4 Sheets-Sheet 4 Fig.16

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Patented Feb. 26, 1929.

UNITED sTArEs.

T 1,703,245 PAT ENT, OFFICE.

RICHARD FITZ POWER, OF LONDON, ENGLAND, ASSIGNOR TO.MO RLAND & IMPEY LIMITED, OF BIRMINGHAM, ENGLAND. i g

PERMANENT BINDER.

Application filed June 2i), 1927,5erial No. 200,200, and in Great Britain -J'-uly 26, 1926.

After a number'of leaves have been used in a temporary binder, it is sometimes required to bind them permanently in a binder of inexpensive form. Various forms of permanent binders for this purpose are known, in which a metal binding wire or strip is inserted through a pair of covers and the leaves.

The object of t-hepresent invention is to provide an improved permanent binder of.

simple and convenient construction and of neat appearance.

The invention comprises primarily the use of a. metal binding strip of concavo-conveX sect-ion. Such a strip is capable of being easily bent, and when bent it forms a sharp angle. r I

The invention preferably also comprises the combination with the rear edge of each cover, of a clamping strip of metal or other suitable material which is formed with slots having a form similar to the cross section of the binding strip. I I

Also the invention may comprise the combination with one of the covers, of clips or tongue pieces for engaging the folded bindmg strip.

Further the invention comprises the employment in assembling the leaves, covers and binding strips of temporary supports as heremater described.

In the four accompanying sheets of eX- q of a wire or strlp of circular, flat, or solid planatory drawings 1-- igure 1 is a planand Figure 2 a longitudi nal section of one of a pair of covers adapted in accordance with this invention for perma ncntly binding a numberof sheets.

Figure 3 is a side elevation and Figure 4 a cross section of the binding strip.

Figure 5 is a rear elevation showing the modeof binding a number of leaves by means of the strip and covers shown in Figures-14%.

Figure 6 is a plan, Figure 7 a longitudinal section, and Figure. 8 a cross section of a modified form of cover.

Figures 9 and 10 are rear views showing the binding of a number of leaves between covers as shown 1n Flgures 6-8, and Figure 11 is a lon itudinal section throu h the rear.

portion of the bound covers and leaves shown in Figure 10. V c Figures 12, 13 and 14 arerespectively longitudinal section, plan and transverse section of a temporary holder for use in assembling the leaves and covers on the binding stripmentioned.

'hinge portion at g.

Figures 15,16 and 17 are respectively sin iilar views to Figures 12, 18 and 14, showing an alternative form of temporary support.

In carrying the'lnvention into effect as shown in Figures 15, each cover comprises a cardboard portion ate the rear edge of which is hinged by means of a canvas orother flexible material 6 a metal clamping strip a which is perforated at a pair of suitable posit-ions (Z toreceive the bindingstrip, The

flexible mate ial which encloses-the clamping strip is likewise perforated. Alsotwo or more tongue pieces 6 are pressed out from one of the clampingstrips in suitable positions. 7

Them'etal binding strip f which may be made from brass or soft iron or steel is formed to ahollow semi-circular or other like concavo-convex section of uniform thickness. In

use the strip is first bent to permit the inser-.

"down over the outer face of the upper'clamping strip, and finally they are secured by bending over them the tongue pieces 6 above By the use of a binding strip as above described I am ableto obviate the disadvantages semi-circular section,-as, after the strip is bent, the corners at the bends'assu'me a sharp angle, and the portions lying within the leaves have no tendency to assume a curved form. The use of perforations in the clamp- '75 tion of its ends through the slots in the clamping strips of the same form as the section of the binding strip also assists me in obtaining the desired results.

, Referring to F igures 6-11, each cover a is made entirely from cardboard, the portion forming the rear end being adapted in any convenient manner to provide a flexible or Preferably a double thickness of cardboard is provided at the rear portion as shown. Eyelets h are pro vided for the reception of the binding strip, andseparate-metal clips 2' are also provided in one of the covers tosecure the endsof the str p. :The mode of using the covers and binding strip is essentially the same as that above'descnbed, and is fully illustrated in Figures 9, 10 and 11.

For use in assembling the leaves and c0vers on the strips, I may employ temporary supports of which two forms are shown in Figures 12-17.

Referring to Figures 12, 13 and l t, the temporary support comprises a base a which is preferably stepped on its upper surface and adapted to accommodate the lower cover a, Z). The port of the support beneath the cover portion Z) is recessed to accommodate the binding strip j, the letter being secured to the sup port by e pivoted clamping piece Z. The leaves to be bound ere placed 01 r the binding strip and when a snilicient number of leaves have been assembled, the other cover is placed in position. Before proceeding to bind the leaws end covers together, the binding; strip is relensed from the ten'iporery support, an d litter edvai'icing the binding, ip so that the horizontal portion comes into contact with the outer side 01 the under cover the projecting ones of the binding strip are bent over the upper cover and secured as already descrined. By the use of a relatively deep recess in the temporarysupport as shown in Figures l21 i, the vertical portions of the strip are heid steady While the leaves are being; assembled on the vertical portions of tee strip. For some purposes this convenience may not be required, in which case the simpler form of temporary support shown in Figures 1" -17 wing thus desc 1 claim as new and do: Patent is i. in loose lest coi'nprisinp; :1 metal through it its le gth is oi i.

' clempiir ph a form Silliiil't the hindin strip, subto the Cross swtion oi stentielly as described.

The combination with a oose-leei binder, of a metallic binding strip having an initial concevo-conver section throughout its entire length and adapted to be bent to form a relatively sharp corner. 7

in testimony whereof I have signed my name to this specification.

RICHARD FITZ POWER. 

